ITEM NAME:150PCS Plated Carbon Steel Rivet Nut M3 M4 M5 M6 M8 M10 M12 Flat Head Threa A5G2 150PCS Plated Carbon Steel Rivet Nut M3 M4 M5 M6 M8 M10 M12 Flat Head Threa A5G2 Sturdy and durable: made of high quality carbon steel and zinc plated. The knurled nut makes it easier to insert into the work piece. Can be easily installed in many different kinds of material including steel, plastic and fiberglass. Great rivet nut installation tools to make work easier and more quick. Color: copper color Material: Carbon steel galvanized Type: M3 M4 M5 M6 M8 M10 M12 quantity: 150pcs Package includes: 40*M3 Rivet Nut 40*M4 Rivet Nut 30*M5 Rivet Nut 20*M6 Rivet Nut 10*M8 Rivet Nut 5*M10 Rivet Nut 5*M12 Rivet Nut Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.